Analyzing the Spatial-Semantic Interaction of Points of Interest in Volunteered Geographic Information

With the increasing success and commercial integration of Volunteered Geographic Information (VGI), the focus shifts away from coverage to data quality and homogeneity. Within the last years, several studies have been published analyzing the positional accuracy of features, completeness of specific attributes, or the topological consistency of line and polygon features. However, most of these studies do not take geographic feature types into account. This is for two reasons. First, and in contrast to street networks, choosing a reference set is difficult. Second, we lack the measures to quantify the degree of feature type miscategorization. In this work, we present a methodology to analyze the spatial-semantic interaction of point features in Volunteered Geographic Information. Feature types in VGI can be considered special in both, the way they are formed and the way they are applied. Given that they reflect community agreement more accurately than top-down approaches, we argue that...

• Type: Journal
• Year: 2011
• Where: COSIT
• Authors: Christoph Mülligann, Krzysztof Janowicz, Mao Ye, Wang-Chien Lee
• Keywords: COSIT 2011, GIS, Polygon Features, Semantic Similarity, Topological Consistency